ON STAGEII (serv.man6) - JBL Audio EMC - CB Certificate (repair manual). Page 61

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Nemko USA, Inc. 
11696 Sorrento Valley Road, Suite F, San Diego, CA  92121 
Phone (858) 755-5525  Fax (858) 452-1810 
DATE 
DOCUMENT NAME 
DOCUMENT # 
PAGE 
Janurary 5,2006 
Harman Multimedia  OnStage UD    CE Test Report 
2006 011114 CE AUS/NZ 
 
61 of 72 
 
 
APPENDIX A 
A. Conducted & Radiated Emissions Measurement Uncertainties 
 
1.   Introduction 
 
ISO/IEC 17025:1999 and ANSI/NCSL Z540-1-1994 require that all measurements contained in a test report be 
“traceable”.  “Traceability” is defined in the International Vocabulary of Basic and General Terms in 
Metrology (ISO: 1993) as:  “the property of the result of a measurement... whereby it can be related to stated 
references, usually national or international standards, through an unbroken chain of comparisons, all having 
stated uncertainties”.    
 
The purposes of this Appendix are to “state the Measurement Uncertainties” of the conducted emissions and 
radiated emissions measurements contained in Section 5 of this Test Report, and to provide a practical 
explanation of the meaning of these measurement uncertainties. 
 
2.  Statement of the Worst-Case Measurement Uncertainties for the Conducted and 
Radiated Emissions Measurements Contained in This Test Report 
 
Table 1: Worst-Case Expanded Uncertainty "U" of Measurement for a k=2 Coverage Factor 
Conducted Emissions Measurement Detection Systems 
Applicable Frequency 
Range 
"U” for a k=2 
Coverage Factor 
HP8568B Spectrum Analyzer with QPA and HP8447F Preamplifier 
150 kHz - 30 MHz 
+/- 3.0 dB 
HP8566B Spectrum Analyzer with QPA and  Preselector 
9 kHz - 30 MHz 
+/- 2.9 dB 
 
 
 
Radiated Emissions Measurement Detection Systems 
Applicable Frequency 
Range 
"U”  for a k=2 
Coverage Factor 
HP8568B Spectrum Analyzer with QPA & HP8447F Preamplifier 
30 MHz - 200 MHz 
+4.0 dB, -4.1 dB 
HP8568B Spectrum Analyzer with QPA & HP8447F Preamplifier 
200 MHz-1000 MHz 
+/- 3.5 dB 
HP8566B Spectrum Analyzer with QPA & Preselector 
30 MHz - 200 MHz 
+3.9 dB, -4.0 dB 
HP8566B Spectrum Analyzer with QPA &  Preselector 
200 MHz-1000 MHz 
+/- 3.4 dB 
HP8566B Spectrum Analyzer with QPA & HP 8449A Preamplifier 
1 GHz - 18 GHz 
+2.5 dB, -2.6 dB 
HP8566B Spectrum Analyzer with QPA & HP8449A Preamplifier 
18 GHz - 40 GHz 
+/- 3.4 dB 
NOTES: 
1. Applies to 3 and 10 meter measurement distances 
2. Applies to all valid combinations of Transducers (i.e. LISNs, Line Voltage Probes, and Antennas, as appropriate) 
3. Excludes the Repeatability of the EUT 
 
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